Add 81/21 and 6/54
1st number: 3 18/21, 2nd number: 6/54
81/21 + 6/54 is 250/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
81/21 = 81 × 18/21 × 18 = 1458/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
6/54 = 6 × 7/54 × 7 = 42/378 - Add the two like fractions:
1458/378 + 42/378 = 1458 + 42/378 = 1500/378 - 1500/378 simplified gives 250/63
- So, 81/21 + 6/54 = 250/63
In mixed form: 361/63
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